Sonoff Air Quality Monitor CO2 - Matter Air Quality Sensor

💨 Sonoff SAWF-08P - Matter CO2 Air Quality Sensor

SONOFF AirGuard CO₂ (SAWF-08P) is an air quality monitor featuring Matter over Wi-Fi support and NDIR-based CO₂ sensing technology, capable of measuring and displaying carbon dioxide levels, temperature, and humidity in real time. The professional NDIR sensor updates every 5 seconds and quickly responds to changes in indoor air quality with an accuracy of ± (50 ppm + 5%).

Elevated CO₂ levels can cause drowsiness and poor concentration. Lowering them helps you feel more alert and focused. It offers improvement guidance by combining real-time indoor data with outdoor air quality data from your city, helping you take the right steps to maintain a healthier environment.

Receive instant alerts via 3 methods: app notifications, audible, and visual alarms. Customize your preferences and set "Do Not Disturb" mode so you won't be interrupted when you need quiet.

With up to 1 year of historical data storage and export functionality, AirGuard CO₂ supports long-term analysis, helping users develop energy-efficient ventilation habits. Visualize trends on intuitive charts to pinpoint the root causes of air quality changes.

Thanks to Matter support, AirGuard CO₂ integrates effortlessly into Apple Home, Google Home, Amazon Alexa, and SmartThings ecosystems. Measured values can also be used in smart automations – such as activating ventilation or fans at high CO₂ levels or adjusting HVAC operation based on comfort thresholds. Easily create smart scenes with third-party devices for automated air quality regulation.

*Integrating AirGuard CO2 with a third-party Matter ecosystem requires a Matter hub.

The larger sensor contact area enables more extensive interaction with surrounding gases, leading to the collection of more detailed and accurate data. By covering a larger area, the sensor captures and analyzes gas concentrations more effectively, delivering more reliable results and a clearer picture of ambient air quality.

Designed to integrate seamlessly into the Apple ecosystem, this sensor fully supports the Siri voice assistant and is compatible with devices like iPhone, iPad, and Apple Watch. It allows users to easily monitor air quality and receive notifications directly on their Apple devices, offering a convenient and effective home environment management solution.

Hands-free air quality checks allow users to instantly view air status without launching a dedicated app. Simply use voice commands or ecosystem-integrated features to retrieve real-time air quality data, simplifying monitoring and enhancing convenience.

*Requires smart speakers with supported third-party voice platforms

Feature Overview

*Note: To view humidity data in the Apple Home app, please update your iPhone to iOS 26 or later

AirGuard Series Comparison

Quick Start

You have two pairing methods to choose from. The first is adding the device via the eWeLink app. The second is adding the device via a Matter-compatible app.

Specifications

• 📦 Product / Model: SONOFF AirGuard CO₂ / SAWF-08P
• 🛠 Sensor Technology: NDIR CO₂ sensor (±50 ppm + 5%); refresh rate: 5 s
• 📊 Measured Parameters: CO₂, temperature, humidity
• 🔧 Microcontroller: ESP32-D0WDR2-V3
• 🔌 Power Input / Connector: USB-C (Type-C)
• 📡 Wireless Connection: Wi-Fi 2.4 GHz (IEEE 802.11 b/g/n); Matter interface compatible
• 🖼 Material: PC + ABS enclosure
• 📏 Dimensions: 70 × 103 × 26 mm
• ⚖️ Weight: 101 g
• 🌡 Operating Environment: −10 to +50 °C; 5–95% RH (non-condensing)
• ✅ Certifications: CE / FCC / RoHS
• 🆔 FCC ID: 2APN5-SAWF08P

Package Contents

AirGuard CO₂ unit, USB-C cable, documentation